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Foreign-body granuloma mimicking post-chemotherapy residual seminoma: A case of true-negative findings using diffusion-weighted whole-body magnetic resonance.

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Presentation on theme: "Foreign-body granuloma mimicking post-chemotherapy residual seminoma: A case of true-negative findings using diffusion-weighted whole-body magnetic resonance."— Presentation transcript:

1 Foreign-body granuloma mimicking post-chemotherapy residual seminoma: A case of true-negative findings using diffusion-weighted whole-body magnetic resonance imaging with background suppression  Hideki Takeshita, Satoru Kawakami, Taro Takahara, Kojiro Tachibana, Shunsuke Hiranuma, Hironori Sugiyama, Makoto Kagawa, Akihiro Yano, Yohei Okada, Makoto Morozumi  European Journal of Radiology Open  Volume 5, Pages (January 2018) DOI: /j.ejro Copyright © 2018 The Authors Terms and Conditions

2 Fig. 1 Computed tomography scan at the first visit. (A, B, C) Contrast-enhanced images of lymph node metastases. (D, E) Primary tumor of the right testis and spermatic cord. Only plain images were available. The arrows indicate the tumors. European Journal of Radiology Open 2018 5, 41-44DOI: ( /j.ejro ) Copyright © 2018 The Authors Terms and Conditions

3 Fig. 2 Post-chemotherapy 2–18fluoro-deoxy-d-glucose positron emission tomography (FDG-PET) images. (A) Maximum intensity projection (MIP) image, (B) MIP-fused image, and (C, D) fused PET-CT images. The arrows show two 10-mm right inguinal FDG-positive nodules. European Journal of Radiology Open 2018 5, 41-44DOI: ( /j.ejro ) Copyright © 2018 The Authors Terms and Conditions

4 Fig. 3 Post-chemotherapy diffusion-weighted whole-body magnetic resonance imaging with background suppression (DWIBS) images. (A) Maximum intensity projection (MIP) image, and (B, C) T2-diffusion fused images. The arrows show there is no significant positive intensity in the right inguinal lesion. DWIBS was performed with a 1.5-T MR system (Ingenia, Philips Healthcare, Best, the Netherlands) with a b-value of 1000 s/mm2. European Journal of Radiology Open 2018 5, 41-44DOI: ( /j.ejro ) Copyright © 2018 The Authors Terms and Conditions

5 Fig. 4 Histopathological findings. (A) Surgical specimen 65 × 50 × 8 mm in size. (B) Several granulomas are scattered in the excised specimen (hematoxylin and eosin staining, 100 × ). The granulomas contained fragmented surgical threads, but no residual seminoma. European Journal of Radiology Open 2018 5, 41-44DOI: ( /j.ejro ) Copyright © 2018 The Authors Terms and Conditions

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